40001646346 has 4 divisors (see below), whose sum is σ = 60002469522. Its totient is φ = 20000823172.

The previous prime is 40001646343. The next prime is 40001646361. The reversal of 40001646346 is 64364610004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30773930625 + 9227715721 = 175425^2 + 96061^2 .

It is not an unprimeable number, because it can be changed into a prime (40001646343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000411585 + ... + 10000411588.

Almost surely, 2^40001646346 is an apocalyptic number.

40001646346 is a deficient number, since it is larger than the sum of its proper divisors (20000823176).

40001646346 is a wasteful number, since it uses less digits than its factorization.

40001646346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000823175.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 40001646346 in words is "forty billion, one million, six hundred forty-six thousand, three hundred forty-six".